If you experience Homeworld 2 camera and movement lag/choppiness when you zoom in on ships or asteroids, you most likely have one of the following: an out of date video card driver, a cracked exe, or an integrated graphics card. There are a few solutions that have been known to work, that I’ve posted below. Let me know which one works for you!

Enable Vsync. In the game options enable Vsync. This is one of the most common fixes.

Turn detail geometry off, and set hyperspace quality to low. Visually, the difference is minimal and on some machines (especially integrated graphics) this will get rid of the lag completely

Update your video drivers. Outdated video drivers might be incompatible with the game and could be causing the lag/choppiness.

Force Homeworld 2 to use your GPU instead of integrated graphics. On some newer machines; laptops especially, you may have to manually set the game to run using your NVidia GPU (if you have one) instead of the integrated graphics card. To do this follow the steps in this stackexchange post.

Re-install. If you’re using a cracked exe file it might be the cause of your problems. These files are user generated and offer no guarantee of quality. Try re-installing and running the game from the CD again.

If you’ve followed the above steps and are still having Homeworld 2 camera and movement lag issues, please post in the comments below. To increase your chances of a solution being found include as much detail as possible (which version of the game you’re running, what operating system you have, what video card you have and steps to reproduce the issue). Screenshots are also very useful!

I also have a Lenovo Y570 with Win7 and followed the instructions. However it still says I’m using the integrated video chip. I’ve tried to re-install and it doesn’t still doesn’t work. Yes I’ve used the uninstaller program and rebooted and I’ve always patched to 1.1 before even launching the game. I’ve tried also using the switch to match my screen resolution (adding the switch to my shortcut) and removing them and it still doesn’t use my NVidia GPU. Any suggestions?

Hmm, by far the most common fixes for this are tweaking the in-game options AKA: Enable Vsync and/or Turn detail geometry off, and set hyperspace quality to low.

Could you be more specific about where it says you’re using the integrated video chip? Are you getting some kind of error message when you start the game? From some quick googling on your laptop model, it has its own dedicated graphics card (NVIDIA GeForce GT 555M) so the game theoretically shouldn’t be defaulting to your integrated graphics chip.